Mantung is a town and a locality in the Australian state of South Australia located in the state's south-east about 140 kilometres (87 mi) east of the state capital of Adelaide, and about 58 kilometres (36 mi) north-east and about 48 kilometres (30 mi) south-west respectively of the municipal seats of Karoonda and Loxton.

[10] Mantung was one of the towns along the Waikerie railway line after it opened in 1914.

[11] Despite the railway closing around 1990, the town hall has continued to be used by the community.

[12] The historic Elizabeth Well Ruins are listed on the South Australian Heritage Register.

[13][14] Mantung is located within the federal division of Barker, the state electoral districts of Chaffey and Hammond, and the local government areas of the District Council of Karoonda East Murray and the District Council of Loxton Waikerie.